diff options
Diffstat (limited to 'src/plugins/scenegraph/openvg/qsgopenvgfontglyphcache.h')
-rw-r--r-- | src/plugins/scenegraph/openvg/qsgopenvgfontglyphcache.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/plugins/scenegraph/openvg/qsgopenvgfontglyphcache.h b/src/plugins/scenegraph/openvg/qsgopenvgfontglyphcache.h new file mode 100644 index 0000000000..a88d28b0fe --- /dev/null +++ b/src/plugins/scenegraph/openvg/qsgopenvgfontglyphcache.h @@ -0,0 +1,97 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSGOPENVGFONTGLYPHCACHE_H +#define QSGOPENVGFONTGLYPHCACHE_H + +#include <QtGui/QGlyphRun> +#include <QtCore/QSet> +#include <QtCore/QLinkedList> +#include <VG/openvg.h> + +QT_BEGIN_NAMESPACE + +class QSGOpenVGFontGlyphCache; + +class QSGOpenVGFontGlyphCacheManager +{ +public: + QSGOpenVGFontGlyphCacheManager(); + ~QSGOpenVGFontGlyphCacheManager(); + + QSGOpenVGFontGlyphCache *cache(const QRawFont &font); + void insertCache(const QRawFont &font, QSGOpenVGFontGlyphCache *cache); + +private: + QHash<QRawFont, QSGOpenVGFontGlyphCache *> m_caches; +}; + +class QSGOpenVGFontGlyphCache +{ +public: + QSGOpenVGFontGlyphCache(QSGOpenVGFontGlyphCacheManager *manager, const QRawFont &font); + ~QSGOpenVGFontGlyphCache(); + + const QSGOpenVGFontGlyphCacheManager *manager() const { return m_manager; } + const QRawFont &referenceFont() const { return m_referenceFont; } + int glyphCount() const { return m_glyphCount; } + + void populate(const QVector<quint32> &glyphs); + void release(const QVector<quint32> &glyphs); + + VGFont font() { return m_font; } + +private: + void requestGlyphs(const QSet<quint32> &glyphs); + void referenceGlyphs(const QSet<quint32> &glyphs); + void releaseGlyphs(const QSet<quint32> &glyphs); + + QSGOpenVGFontGlyphCacheManager *m_manager; + QRawFont m_referenceFont; + int m_glyphCount; + + VGFont m_font; + QSet<quint32> m_cachedGlyphs; + QSet<quint32> m_unusedGlyphs; +}; + + +QT_END_NAMESPACE + +#endif // QSGOPENVGFONTGLYPHCACHE_H |